sleep

In order to verify my arduino based prototype, by the end of 2011, I decided to use the depth infrared camera from a kinect to verify "visually" that it works.

I am not going to watch 8 hours of someone sleeping, I'll just get a computer to do that, so I learned some basics for "computer vision" in R.Here I am using frame subtracting by importing each greyscale frame from the depth camera and subtracting it to the next frame. This way I can identify changes and how small/large are these changes between each frame.Here is a sample,

ePlease check out the first part of my sleep monitors series first.Back in May 2011, unsatisfied with the "software" solution I developed with the first prototype, I started developing a "hardware" based solution to develop a contactless sleep actigraph monitor.

And that's what I came up with:Under the mess of wires, there is an arduino controlling:.an annoying buzzer for the alarm

A few years ago, I was looking to improve my sleep. Measuring it would be a start. However I was not satisfied with any sleep monitors on the market.

I needed a non invasive, no "additional daily routine" solution, ready to trade accuracy for maximum convenience.So back in late 2010 I started work on my first prototype, contactless sleep monitor based on actigraphy.